720196 has 12 divisors (see below), whose sum is σ = 1266300. Its totient is φ = 358400.

The previous prime is 720193. The next prime is 720197. The reversal of 720196 is 691027.

It can be written as a sum of positive squares in 2 ways, for example, as 617796 + 102400 = 786^2 + 320^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 720196.

It is not an unprimeable number, because it can be changed into a prime (720193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1380 + ... + 1828.

It is an arithmetic number, because the mean of its divisors is an integer number (105525).

2⁷²⁰¹⁹⁶ is an apocalyptic number.

It is an amenable number.

720196 is a deficient number, since it is larger than the sum of its proper divisors (546104).

720196 is a wasteful number, since it uses less digits than its factorization.

720196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854 (or 852 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 720196 is about 848.6436236725. The cubic root of 720196 is about 89.6362271130.

The spelling of 720196 in words is "seven hundred twenty thousand, one hundred ninety-six".